Time for clubhead to accelerate 0.05 kg golf ball to 80 m/s

[BeccaWella]

HELP! i can't think of the formula!

Homework Statement

A 0,05kg golf ball is driven from the tee at a speed of 80m/s. if the average accelerating force on the ball is 6500N, determine how long the clubhead is in contact with the ball.

Homework Equations

The Attempt at a Solution

I have sat staring at this question for awhile. could somebody please help me out so i can substitute...?

 

[danielakkerma]

Have you heard of the law of Impulses?
It states that: $$\Delta{\vec{p}} = \overline{\vec{F}}\Delta{t}$$
Try it.
Where dP is the change in momentum, and F is the average force...
Daniel

 

[BeccaWella]

Thank you

What would Δp⃗ be?